EXHIBIT 4.2 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (the "Agreement") is made as of December 4, 2003, by and among EDGE PETROLEUM CORPORATION, a Delaware corporation (the "Company"), and those persons set forth on Exhibit A.Registration Rights Agreement • February 3rd, 2004 • Edge Petroleum Corp • Crude petroleum & natural gas • Delaware
WARRANTCommon Stock Purchase Warrant • February 3rd, 2004 • Edge Petroleum Corp • Crude petroleum & natural gas • Delaware
